Home / 3,420,881.43-5,127,779.20-2,815,481.56

Finding the Fourth Proportional to 3,420,881.43, 5,127,779.20 and 2,815,481.56

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Solution

The fourth proportional to 3,420,881.43, 5,127,779.20 and 2,815,481.56 is: 4,220,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,881.43 : 5,127,779.20 = 2,815,481.56 : x
  2. Step 2: Convert to fraction form
    3,420,881.43/5,127,779.20 = 2,815,481.56/x
  3. Step 3: Cross multiply
    3,420,881.43x = 5,127,779.20 × 2,815,481.56
  4. Step 4: Simplify right side
    3,420,881.43x = 14,437,167,781,351.55
  5. Step 5: Solve for x
    x = 14,437,167,781,351.55/3,420,881.43
  6. Step 6: Final answer
    x = 4,220,306.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.